Photo: Earth Science and Remote Sensing Unit , Lyndon B. Johnson Space Center · Public domainFew places are as safe from hazards as Oneida 41: it beats 92% of Canadian towns
Fire has left almost no mark near Oneida 41: 0% of the land within 25 km since 1986, 0.000% a year. Shaking is about as much of a worry in Oneida 41 as in most places, at $0.018 a year per $1,000 of building value ($0.030 typical). Radon is lower than usual: 1.8% of tested homes in the survey area topped the guideline, against 6.6% for the typical town. Oneida 41 grades A for hazard risk; wildfire is low here, so it earns no credit.
What stands out about Oneida 41’s hazards
Four national sources, each read for Oneida 41: earthquakes, radon, past fires and flood studies.
What Oneida 41 faces
Each hazard against its own yardstick; meters run from low to high on that yardstick.
Wildfire
Earthquakes
Radon
Flood study
Oneida 41 grades A for hazard risk
The grade weighs Oneida 41’s seismic risk and radon equally, and wildfire is one-sided: a high band counts against a town, a low one earns nothing.
How sure: The seismic figure is a long-run average from NRCan’s model, not a prediction. Small fires and grass fires are largely missing from the national burned-area record.
Wildfire is rare near Oneida 41: 0% of the land within 25 km burned since 1986, 0% within 5 km
Past fire around Oneida 41’s homes, from the national burned-area record, with the fuel within 5 km.
Next to the typical Canadian town (0.000% a year), Oneida 41’s 0.000% is in the low band.
Little near Oneida 41’s homes can carry a forest fire; only 0.1% of the land within 5 km is forest fuel, and 0.4% within 25 km.
Shares of land within 5 and 25 km of populated blocks: burned at least once in 1986–2025 (CWFIS burned-area composite), forest fuel and grass (fire behaviour fuel types, 2026, 250 m grid).
Burn rate a year, towns in Ontario · highest of 872
Among the 872 towns in Ontario, Sioux Lookout burns fastest (0.16% a year); Oneida 41 is with the 639 near zero.
Each bar: the yearly average share of land within 25 km of a town’s homes that burned, 1986–2025 (CWFIS); the seven highest towns of 2,500 people or more.
92% of Canada’s 2,610 towns are in the low band and 7.5% above it; Oneida 41 is among the many where the yearly burn rate rounds to zero.
Bands of the yearly burn rate: low under 0.05%, moderate under 0.25%, high under 1%, very high 1% or more; towns of 2,500 people or more.
Fire danger and active fires (CWFIS)
Canadian Wildland Fire Information System: National Burned Area Composite 1986–2025 and fire behaviour fuel types (2026), Natural Resources Canada. Measured within 25 km and 5 km of each populated dissemination area; past fire, not a forecast.
The flood map inventory lists nothing for Oneida 41
What Canada’s Flood Map Inventory lists for Oneida 41: who studied flooding and where to see their maps.
The inventory has nothing for Oneida 41, but a local or conservation-authority map may still exist.
Towns with a flood study on file
69% of towns in Ontario have a flood study, more than Canada’s 58%; Oneida 41 is not yet one of them.
NRCan Canada Flood Map Inventory: a study footprint touching the town’s boundary; towns of 2,500 people or more.
Listed, not scored: a flood study proves a map exists, not that Oneida 41 floods.
The inventory’s own caution (NRCan): “The Canada Flood Map (CFM) does not include every flood hazard map in Canada and may be incomplete or contain inaccuracies. It should not be relied upon as the official source of flood mapping information. Furthermore, if a map appears to be missing, this does not necessarily mean that the area has never been mapped. For the official version of a map, updated information, or confirmation of applicable regulations, please contact the local authority responsible for flood mapping.”
Earthquakes cost buildings in Oneida 41 $0.018 per $1,000 a year
Expected yearly building losses from earthquakes, from Natural Resources Canada’s model.
Nothing unusual about Oneida 41’s ground: $0.018 against a typical $0.030, 0.6 times.
Shaking damage a year per $1,000 of building value
Earthquake risk in Ontario peaks in Alexandria ($0.21); Oneida 41, at $0.018, is below the median of $0.043.
NRCan seismic risk model (2022): mean yearly building loss per $1,000 of value; medians of towns of 2,500 people or more.
Most of Canada’s 2,611 towns (68%) face more earthquake damage than Oneida 41.
Each column: the share of Canada’s towns of 2,500 people or more in that range of yearly loss per $1,000 (NRCan, 2022).
The loss is to Oneida 41’s buildings alone, from ground shaking; infrastructure and secondary hazards are left out.
Natural Resources Canada, Canada’s Seismic Risk Model (2022), by census subdivision (2016 boundaries; a few 2021 subdivisions take their residents’ mean).
1.8% of homes tested around Oneida 41 are over the radon guideline
Long-term radon tests in homes across the survey area, against Health Canada’s guideline. · Area-wide: radon tests, counted over the Middlesex-London Health Unit
Oneida 41’s survey area reads 1.8% over the guideline, under the typical Canadian town’s 6.6%.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
Oneida 41’s area, at 1.8%, is below the median in Ontario (4%).
Health Canada radon survey (2009–2011), by 2007 health region; medians of towns of 2,500 people or more.
Oneida 41 is in the lowest band, with 37% of Canada’s 2,611 towns: under 5% of tests over the guideline, while 63% have more.
Each bar: the share of Canada’s towns of 2,500 people or more whose survey area had that share of tests over 200 Bq/m³.
The survey sampled homes around Oneida 41; it can’t tell you your basement’s level.
Health Canada, Cross-Canada Survey of Radon Concentrations in Homes (2009–2011).
Weather and fire alerts for Oneida 41
Alerts for Oneida 41 come from Environment and Climate Change Canada and, for emergencies, Alert Ready.
| Alert | What it means |
|---|---|
| Warning | Severe weather is happening or about to: act now. |
| Watch | Conditions favour severe weather: be ready. |
| Advisory | Weather that is less severe but could disrupt the day. |
| Special weather statement | Unusual weather worth knowing about. |
| Special air quality statement | Poor air, often wildfire smoke. |
Fire danger and active fires near Oneida 41 are mapped daily by the Canadian Wildland Fire Information System; evacuation orders come from the municipality or province.
Weather alerts (ECCC) · Alert Ready · Fire danger and active fires (CWFIS)
Hazards in the places around Oneida 41
Wildfire band, earthquake risk, radon and flood studies for each place nearby.
| Town | Wildfire | Quake $/1,000 | Radon | Flood study |
|---|---|---|---|---|
| Oneida 41 | Low | $0.018 | 1.8% | None listed |
| Southwold 5,473 · 12 km | Low | $0.021 | 7.5% | Yes |
| Lambeth 2,609 · 13 km | Low | $0.020 | 1.8% | None listed |
| Talbot 8,085 · 14 km | Low | $0.020 | 1.8% | None listed |
| Byron 15,277 · 15 km | Low | $0.020 | 1.8% | None listed |
| Westmount 19,591 · 16 km | Low | $0.020 | 1.8% | None listed |
| Bostwick 7,694 · 16 km | Low | $0.020 | 1.8% | Yes |
Among its neighbours Oneida 41 has the most fire on record (low); Southwold follows (low).
Radon is the survey area’s figure, so neighbours in one area share it.
Get ready for what Oneida 41 faces
What to do about the hazards Oneida 41 faces, and what to ask before you buy.
- Test for three months in winter.
- Over 200 Bq/m³: fix it.
- Kits are cheap; pros test too.
- Never drive through floodwater.
- Move papers and medicines upstairs.
- Ask whether your street is mapped.
- Clear needles and wood nearby.
- Keep a grab-and-go bag ready.
- In smoke, stay in; filter air.
- Has it had a radon test?
- Ask the municipality for flood maps.
- Are flood and wildfire insured?
What this data can and can’t tell you
- Wildfire counts one way. Wildfire is read from the national burned-area record around Oneida 41’s homes since 1986, a history of fire that may lower Risk but never raises it.
- Earthquakes are modelled. NRCan models what earthquakes would cost buildings each year on average, subdivision by subdivision; Oneida 41’s figure is its subdivision’s.
- Radon is a survey. The radon share comes from about 14,000 long-term home tests in 2009–2011, pooled for now by the 2007 health region Oneida 41 sits in.
- Flood studies aren’t flood zones. A study’s area can be a whole watershed or province, so being on the inventory says a map exists, not that a home in Oneida 41 floods.
Questions about flooding and hazards in Oneida 41
Does Oneida 41 flood?
Nothing is listed for Oneida 41 on the national inventory (0); local maps may still exist with the municipality.
How is Oneida 41’s Hazard risk Grade worked out?
Oneida 41 grades A for hazard risk, from earthquakes and radon, with wildfire counted only where it lowers the grade.
Is radon a problem in Oneida 41?
In Health Canada’s survey, 1.8% of 110 homes tested in Oneida 41’s area were above 200 Bq/m³, though only a test tells you about one house.
How big is the earthquake risk in Oneida 41?
NRCan’s model expects shaking to cost buildings in Oneida 41 $0.018 a year for every $1,000 of their value, on average over many years.
Is Oneida 41 at risk of wildfire?
Very little by the national record: Oneida 41’s band is low, with 0% of the land within 25 km burned since 1986, so wildfire doesn’t change its grade.
Seismic risk: Natural Resources Canada. Radon: Health Canada. Wildfire: Canadian Wildland Fire Information System. Flood studies: Natural Resources Canada, Canada Flood Map Inventory. Contains information licensed under the Open Government Licence – Canada.
Sources: NRCan, Canada’s Seismic Risk Model 2022 · Health Canada, Cross-Canada Survey of Radon Concentrations in Homes · CWFIS, National Burned Area Composite and FBP fuel types · NRCan, Canada Flood Map Inventory. Under the Statistics Canada Open Licence.
Adapted from Statistics Canada (Census of Population 2021, population estimates 2025, 2021 census boundaries) under the Statistics Canada Open Licence; this does not constitute an endorsement by Statistics Canada. Neighbourhood names in some cities © OpenStreetMap contributors (ODbL).